#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
	int i, j, k;
	i = 3;
	printf("i=%d\n", ++i);
	i = 3;
	printf("i=%d\n",i++);
	i = 3;
	k = ++i;
	printf("k=%d,i=%d\n", k, i);
	i = 3;
	k = i++;
	printf("k=%d,i=%d\n", k, i);
	i = 3;
	k = (++i) + (++i) + (i++);//i=i+1,i=i+1,k=i+i+i,i=i+1,i=6,k=15.
	printf("i=%d,k=%d\n",i,k);
	i = 3;
	k = (i++) + (++i) + (i++);//i=i+1,k=i+i+i,i=i+1,i=i+1,k=12,i=6.
	printf("i=%d,k=%d\n",i, k);
	i = 3;
	j = 5;
	k = (++i) * j;//i=i+1,k=i*j,k=20,i=4.
	printf("i=%d,k=%d\n", i, k);
	i = 3;
	j = 5;
	k = (i++) * j;//k=i*j,i=i+1,k=15,i=4.
	printf("i=%d,k=%d\n", i, k);
	return 0;
	
}